/Engine/Plugins/Runtime/Metasound/Source/MetasoundFrontend/Public/MetasoundFrontendController.h
Add a new node to this graph from the node registry.
Node handle for class. On error, an invalid handle is returned.
[FNodeHandle](API\Plugins\MetasoundFrontend\FNodeHandle) AddNode ( const [FNodeRegistryKey](API\Plugins\MetasoundFrontend\FNodeRegistryKey) & InKey, [FGuid](API\Runtime\Core\Misc\FGuid) InNodeGuid )